Punching-machine.



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PUNCHING MACHINE.

APPLICATION FILED JUNE 10. 1914.

Patented Sept. 14, 1915..

6 SHEETS--SHEE12.

Witwzooao l. WRIGHT.

PUNCHING MACHINE.

APPLICATION man mm: 10. 1914.

Patentedsept. 14, 1915.

6 SHEETSSHEE13.

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11W @MIHUH. 55g

J. WRIGHT.

PUNCHING MACHINE.

APPLICATION FILED JUNE 10. 1914.

1 IAIU, Patented Sept. 14, 1915.'

6 SHEETS-SHEET 4.

mwmto'c 270k 72 z yk f Witmebwo J. WRIGHT.

PUNCHING MACHINE.

APPLICATION FILED JUNE 10. 1914.

Patented Sept. H, 1915.

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Witnesses J. WRIGHT. PUNCHING MACHINE.

APPLICATION FILED JUNE I0. I914.

6 SHEETS-SHEET 6.

I s A 1 w a m Patented Sept. 14, 1915.

p/ZZ 1 Svwemtoc Joiwz Wrrzyhf 1 JOHN WRIGHT, 0F WILMINGTON, DELAWARE.

lPUNCI-HNG-MACHINE.

1,15%,diltlt Specification of Letters Patent.

Patented Sept. Mi, 19115.

Application filed June 10, 1914;. Serial No. 844,189.

To 'l whom it may concern:

Be it known that LJOHN WRIGHT, a sub-- ject of the King of GreatBritain, residing at Wilmington, in the county of New Castle and Stateof Delaware, have invented certain new and useful Improvements inPunching-Machines, of which the following is a specification. I

-My invention relates to improvements in machines for punching sheet orplate metal.

An important object of the invention is to provide a machine of theabove mentioned character, which will automatically punch sheet or platemetal, in an expeditious man ner, and which is capable of adjustmentwithin wide limits, whereby the arrangement and spacing of the punchedopenings are capable of adjustment, for effecting a step by stepmovement of the carriage in one or both directions.

A further object of the invention is to pro-- vide efficient gag controlmechanism, for rendering the punching elements active and inactive, suchmechanism being capable of adjustment, in accordance with the openingsto be punched.

further object of the invention is to provide a machine of the abovementioned character, which is comparatively simple in construction, willoperate expeditiously whereby a substantial saving is effected in bothtime and money, and which is wholly automatic in operation, whereby theentire sheet or plate may be punched without the mediation of theoperator.

Other objects and advantages of the invention will be apparent duringthe course of the following description.

In the accompanying drawings forming a part of this specification and inwhich like numerals are employed to designate like parts throughout thesame, Figure 1 is a front end elevation of the machine embodying myinvention, Fig. 2 is a side elevation of the same, parts being shown insection and broken away for the sake of illustration, Fig. 3 is asimilar view, with the adjacent side member or casting removed, partsbeing shown in section and parts broken away,

Fig. 4 is a horizontal sectional view taken on line H of Fig. 2, Fig. 5is a detail section through a portion of the vertically movable frameincluded in the gag control mechanism, showing the manner in which thesame operates in slidable engagement with the side member or casting,Fig. 6 is a similar view of the vertically movable slide which carriesthe punching elements, Fig. 7 is a plan view of trip finger or elementincluded. in the gag control mechanism, Fig. 8 is a side elevation ofthe driving means for the gag control mechanism, Fig. 8 is a. detailsection taken on line 8-8 of Fig. 8, Fig.9 is aside elevation of thepresser-bar, showing the lock lever in the lower holding position,partly in section for the purpose of illustration, Fig. 10 is atransverse sectional view through the longitudinally movable carriageand a stool, showing the mannor in which the stool is mounted upon thecarriage, Fig. 11 is a similar view showing the sheet metal supportingroll, and the supports or brackets therefor, Fig. 12 is a side elevationof the driving shaft for the carriage, and associated elements, thecarriage being shown in transverse section, Fig. 13 is a front endelevation, partly in section, of the mechanism for causing the carriageto partake of a step by step movement, and, Fig. 14 is a plan view ofthe same.

In the drawings, wherein for the purpose of illustration is shown apreferred embodiment of my invention, the numeral 50 designatesupstanding or vertical side members or castings constituting asupportingstructure, between which is arranged to reciprocate ahorizontal carriage designated as a whole (see Fig. 1), by the numeral51. This carriage comprises longitudinal beams 52 rigidly connected attheir ends by transverse bars 53. Secured to the lower sides of thelongitudinal beams 52 (see Fig. 11) are rack-bars 54, operating withinannular grooves of supporting wheels 56, the flanges of which engage thelower sides ot the beams 52. The supporting wheels 56 are rotatablymounted upon shafts 57 carried by supports 58, but incapable of movinglongitudinally thereof. It is thus seen that the wheels 56 not onlyserve to support the carriage during its longitudinal travel but preventthe same from moving laterally.

Slidably mounted upon the opposite ends of the carriage 51 to movelongitudinally thereof are stools59 having bolts 59 (see Fig. 10),whereby they may be clamped to the carriage at desired positions. Thesestools carry near their ends clamps 60 of any well known or preferredtype, arranged to receive the corners of the sheet of metal 61 to bepunched. I preferably employ a suitable number of rolls 62, secured tothe supports 58 by brackets 58 and arranged below the section of sheetmetal, preventing the same from sagging, as clearly shown in Fig. 11.Any suitable number of these rolls being used. The brackets extend intothe open carriage 51 and do not interfere with the longitudinal travelof the same. The stools 59 are formed open, as shown in Fig. 10,providing spaces 63 for the passage of brackets 58 carrying the rolls62, whereby these rolls will not interfere with the longitudinaladjustment of the stools upon the carriage.

Means are provided to accurately move the carriage longitudinally stepby step, the length of each step being capable of adjustment. Such meanscomprises (see Figs. 1, 2, 13 and 14), a horizontal plate or member 64,which is preferably L-shaped in cross-section. The vertical portion ofthis member is. rigidly secured to one beam 52 by any suitable means.The horizontal portion or plate 65 of the member 64 is provided with aplurality of rows of spaced openings 66, as clearly shown in Fig. 4.-The openings in each longitudinal row are equidistantly spaced, whilethe openings in the transverse rows formed by the same are laterallyequidistantly spaced forming diagonal rows, as shown. It isobvious thatthe spacing of the openings in the longitudinal. rows may be increasedor decreased by increasing or decreasing the number of longitudinalrows. Arranged within the openings 66 (see Fig. 13) are headed verticalmovable pins 67, which when in their normal lower position extenddownwardly beyond the plate 65 for a substantial distance, as shown. Theupper headed ends of these pins are normally flush with the uppersurface of the plate 65.

Arranged above the perforate plate 65 "are vertically swingingpresser-bars 68 (see Figs. 4 and 9), which are hinged at 68, to a fixedbracket 7 0' rigidly secured to the support 58. Each presser-bar 68carries an upstanding lug or trunnion 71' to be removably mounted withinthe outer apertured end of a verticall swinging lock lever 72, pivotedat 73. 1Z1 Fig. 4, for the sake of 'illustratidn, I have shown both ofthe presser-bars 68 in the lower horizontal position, to extendtransversely of the plate 65, but only one of the presser-bars 68occupies such position at a time, depending upon the direction of travelof the carriage, the other presser-bar being moved out of the way to avertical position. The lever 7 2' will lock the correspondingpresser-bar in the horizontal position. The resser-bars, as shown inFig. 3, are provided upon their lower sides with openings or recesses69, which are oppositely faced, forming shoulders 70, for a purpose tobe more fully explained.

Arranged below and in proximity to the pr'esser-bar 68 is a stationaryhorizontal stub-shaft 72, which is rigidly secured to the adjacentsupport 50 and upon which are independently pivotally mounted verticallyswinging levers 73, as shown. Each lever 73 (see Fig. 3) is providednear the rear end with a substantially V-shaped portion or cam 74,adapted to successively engage with each pin in the contiguouslongitudinal row, in a manner to be more fully explained. The forwardend of each lever 73 has connection with a link 75 or the like carryinga weight 76 to move the cam 74 upwardly, a U-shaped bracket 7 6 beingemployed to limit such swinging movement of each lever 73. It is to beunderstood that instead of employing the weight I may use a spring forthe same purpose. Pivotally connected with the rear end of each lever 73is a depending lifting pawl 78, having a head'79 provided with a curvedface 80. The head 79 is adapted for detachable engagement with a lip orextension 81 formed upon a holding pawl 82, to elevate the same upon itsupward movement. The pawl 82 is provided with a head 83, adapted whenthe pawl is in the lower position to engage with a stop 84, whereby thelongitudinal movement of the pawl in one direction is positivelyprevented. Pivotally connected with the rear end of the pawl 82 as shownat 85 is a bell-crank lever 86, pivoted at 87. A weight 88 is'preferablyadjustably mounted upon the horizontal arm of the bell-crank lever 86,as shown. Particular attention is called to the fact that the pawl 82 isformed sufliciently broad (see Fig; 1 whereby its lip 81 may be engagedand elevated by each of the depending pawls 78. At this point it isthought well to state that the means for effecting the longitudinaltravel of the carriage, to be hereinafter described are stopped, whenthe bell-crank lever 86 swings downwardly. I

Journaled through the rear portion of the side members or castings 50 isa horizontal transverse carriage operating shaft 89,- (see Fig. 12) uponwhich are rigdly mounted pinions or gears 90, engaging the rack-bars 54,to effect the longitudinal travel of the 1,1aaa1o carriage. The shaft 89receives its rotation from a worm wheel 91, preferably arranged upon theouter side of the adjacent side member or casting 50, as shown in Fig.3. The worm wheel 91 is engaged and driven by a worm 92, carried by ashaft 93 journaled through a stationary bearing 94, as shown. Thenumeral 95 designates a source of power such asa motor, having itsarmature shaft 96 connected and disconnected with and from the wormshaft 93byclutch mechanism 97. This clutch mechanism, which may be ofany well known or preferred type, is operated by a vertically swinginglever 98, whereby when the lever is swung down from its upper normalposition the shafts 96 and 93 will be disconnected, the lever beingshown in Fig. 2 in its normal upper position whereby the shafts 96 and93 are connected. The lever 98- will be operated by means to bedescribed. Rigidly mounted upon the shaft 89 preferably inwardly of theadjacent member or casting 50 is a brake wheel 99 (see Figs. 3 and 12),

surrounded by a brake band 100, connected with and operated by avertically swinginglever 101. When this vertically swinging lever is inthe upper normal position the brake band is loose upon the brake wheel99 allowing it to turn, when the lever 101 swings downwardly, the brakeband clamps the brake wheel whereby the rotation of the shaft 89 issuddenly arrested.

J ournaled through the upper portion of one of the members or castings50 is a rockshaft 102 (see more particularly Figs. 1 and 2), upon theouter end of which is rigidlymounted a vertically swinging lever 103,having a weight 104, preferably adjustably mounted upon one end thereof.Pivotally connected with the opposite end of the lever 103 is adepending rod or link 105, the lower end of which is pivotally connectedwith lever 98 as shown at 106. It is thus seen that when the rear end oflever 103 moves downwardly, lever 98 will be moved in the samedirection, whereby shaft 93 will be stopped. Rigidly connected to theinner end of the rock-shaft 102 is a vertically swinging lever 107 (seeFig. 3) arranged inwardly of and adjacent the member or casting 50. Thefunction of the lever 107 is to swing the lever 103 downwardly but itdoes not swing this lever upwardly. Secured to the rear end of the lever107 is a laterally extending pin 108, operating within an elongated slot109 formed through a rod 110, as shown. The lower end of the rod 110" ispivotally connected, as shown at 111, with the horizontal arm of thebell cgank lever 86. A sleeve 112 is-r1gidly secuiied to the rod 110near and. spaced from the pivot 111 thereof and carries spaced latorallyextending 'pins or trunnions 113, re ceiving the outer end of the lever101 therebetween to move the same upon the longitudinal movement of therod 110, as is obvious. Pivotally connected with the upper end of therod 110 as shown at 114, is a resetting lever 115 pivoted upon astationary shaft 116, secured to the adjacent casting 50. The forwardend of the lever 115 has a cam face 117,for engagement with a cam 118,rigidly mounted upon a transverse throw shaft 119, journaled through theupper ends of the castings 50.

' From the foregoing description, it will be seen that when the lever 98is arranged in the'upper position, as indicated in Fig. 3, and the motor95 is running, the'worm 92 will rotate worm wheel 91 at properly reducedspeed, whereby pinions are rotated in engagement with the rack-bar 54,efleeting a longitudinal movement of the carriage 51. The pin 67 in anyof the longitudinal rolls which is farthest to the right will engagewith the cam 7 a of the correspondingly arranged lever 7 3, at about thetime that the pin travels under the presser-bar 68. When this takesplace the pin by traveling in engagement with the cam 7 4, moves theright end of the lever 73 downwardly, whereby the lip of the head 79engages under the lip 81 of the pawl 82. Upon the further move ment ofthe carriage, the pin 67 passes off of the shoulder 70, allowing theweight 76 to swing the right end of the lever upwardly, said pin'enterinthe recess 69. The pawl 78 is thus elevate whereby pawl 82 is raised andits head 83 moved out of engagement with the stop 84. The weight 88 nowswings the bell-crank lever. 86 to the right, whereby rod 110 swingslever 107 downwardly, which through the medium of rock-shaft 102 swingslever 103 downvardly. This downward movement of the lever 103 moves rod105 downwardly, swinging lever. 98 downwardly, to operate the clutch 97and stop the rotation of the shaft 93, whereby the longitudinal travelof the table is stopped. The punching mechanism is thrown into action atthis time, as will be described. Upon the further rotation of the throwshaft 119, which operates the punching mechanism to be described, thecam .118 engages the cam face 117 of lever 115, whereby the right end ofthe lever 115 is elevated, which raises the rod 110, swinging bell-cranklever 86 to the left, whereby the head 83 of pawl 82 will again engagestop 84:, and the lever 86 be locked in 1ts upper or set position. Theupward movement of the rbd 110 does not effect a corresponding movementof the lever 107, but it frees this lever so that it may move up at theproper time. This movement occurs when a clutch mechanism, to bedescrlbed, assumes a certain position, whereby the weight 104; willswing the right end of the lever 103 upwardly and through the medium ofrod 105 swings the lever 98 upwardly whereby the clutch 97 is again set.

The punching mechanism comprises a vertically movable slide or carriage120', arranged between the castings 50, with the ends thereof orextensions, carried thereby 124, receiving cams 125, rigidly mountedupon the throw shaft 119.

The numeral 126 (see Fig. 1) designates a driving shaft, carrying atoothed clutch element 127, rigidly secured thereto, to engage anddisengage a toothed coacting clutch element 128 which is splined uponthe outer end of the throw shaft 119, as shown. The clutch element 128is moved longitudinally or shifted in one direction, that is toward theclutch element 127, by a pivoted shifting level 129, automatically movedby a spring 130, as shown. The clutch element 128 is provided with a camface 131, providing an opening 131' between the elements 127 and 128exteriorly of the tooth thereof, for receiving a lock-bolt 132, in thelargest portion of the opening, that is the bolt 132 moves into theopening 131 upon the rotation of the elements 127 and 128 while they arelocked together, when the largest portion of. the opening moves intoproximity to the bolt 132. Bolt 132 is mounted to vertically reciprocatewithin a stationary guide bracket 133 and is pivotally connected, at

134, with the lever 103. It is thus seen that the weight 104 willcontinuously hold the bolt 132 in slidable engagement with portions ofthe clutch element 127 and 128, automatically moving the same into theopening 131 therebetween, when the largest por: tion of the openingmoves into proximity to the bolt 132. When this takes place, as abovestated, the weight 104 descends, wherebythe right end of the lever 103rises, moving the lock-bolt 132 between portions of clutch elements 127and 128, disengaging them to approximately simultaneously stop therotation of shaft 119 and start the rotation of shaft 93. The bolt 132enters the largest portion of theopening 131 between elements 127 and128 when the slide 120 has traveled upwardly for about one-half of itsstroke and completely disengages clutch elements 127 and 128 when theslide has moved to the end of its upward travel.

The lower end of the slide 120, as more clearly shown in Fig. 3, isprovided with a T-head 135 and a T-shaped opening 136. The numeral137-designates punch-holders having their upper ends pivoted withopenings. 138 properly shaped to receive the at the ends of the slide,and then moved longitudinally upon the head 135, to the desiredposition. In this manner the punchhoders may be moved toward or awayfrom each, other forpunching laterally spaced holes, having differentdistances therebetween. Each tool-holder 137 has an upwardly extendingportion 140, apertured for receiving a headed bolt 141, the head ofwhich is adapted to slide within the opening 136. The outer end of thisbolt is screwthreaded to receive a clamping nut 142, whereby thepunch-holder may be locked to the slide 1n any desired position. While Ihave shown and described this form of means to adjustably connect thetool holders to the slide I wish it understood that any other suitablemeans may be employed.

Each tool-holder (see Fig. 3) is provided with a vertical opening 143,receiving a headed punch element 144. The punchholder is provided with atransverse opening 145, for receiving a reciprocatory gag 146, adaptedfor movement into and out of the path of travel of the punch element144. It is thus seen that whenthe gag is in the position shown in Fig.3, it will hold the punch element 144 from movement with relation to theslide whereby the punch element upon descending will cut the hole in tothe left out of the path of travel of the punch element 144, such punchelement will be idle upon the down stroke of the slide andconsequentlyincapable of punching an opening in the sheet metal. Rigidlysecured to each punch-holder 137 is a forwardly extending bracket 147,having a bell-crank lever 148 pivoted thereto, as shown. The lower endof this bell-crank lever is suitably pivotally connected with an arm149, in turn secured to the gag 146. Pivotally connected with the outerend of the bellcrank lever 148 is an upstanding link 150, the upper endof which is pivoted to a. vertically reciprocatory rod 151. The rod 151is provided near its lower end with a rearwardly extending projection orshoulder 152, adapted to rest upon an extension 153 carried' by theslide 120 and movable therewith. Each of the reciprocatory rods 151operates through openings in a transverse stationary horizontal guidebeam 154, which is rigidly secured to the castings 50, as shown. A ring155 is rigidly secured to the rod 151 within the beam 154 and is engagedby a compressible coil spring 156, the uppoint, that when the rod 151 isreleased. and moved downwardly with the slide, the gag 146 will remainin the operative position rendering the punch element 144 operative.Each rod 151 is provided at its upper end with a forwardly extendinghook-head 157, adapted to be engaged and disengaged by a reciprocatorystop 158, slidably mounted upon the upper side of the beam 154. Thisstop 158 is moved by an arm 159 rigidly secured thereto, having suitablepivotal connection at its outer end with a vertically swinging lever160, pivotally connected with a bracket 161, rigidly secured to the beam154. The lever 160 is swung forwardly by a spring 160*. At its lower end(see Fig. 7), the lever 160 is provided with a forwardly extending tripfinger 162 having its ends oppositely beveled to be operated y the pinor pins included in the gag contlol mechanism when rotating in eitherdirection.

Arranged below the punching elements 144 (see Figs. 1 and 3) is asupport or casting 163, placed between the castings 50 and havingopenings 164 formed therethrough, to receive the longitudinal beam 52 ofthe carriage 51, as shown. Adjustably mounted upon the upper end of thesupport 163 by any suitable means are dies 165', to be arranged toreceive the punching elements, as is customary. The sheet metal travelsabove and in slidable engagement with these At its lower end the holder137' carries a cutter-blade 138, cotiperating with cutterblade 139,secured upon the bed 163, by any suitable means. The function of thisconstruction is to out straight one longitudinal edge of the plate.

The gag control mechanism includes a vertically reciprocatory preferablyopen frame 163, disposed in advance of the slide 120. The frame 163 (seeFig. 5) has its ends or extensions carried thereby operating withinvertical grooves 163*" formed in the castings 50. The frame 163 isprovided at its lower corner with enlargements or bearings 164 havingscrew-threaded openings formed therethrough, to receive verticaloperating screws 165. At their lower ends these screws have smoothextensions 166, operating through fixed bearings 167. Arranged above thebearings are heads 168, rigidly secured to the operating screws,preventing the downward longitudinal movement of the same, whilebevel-gears 169 are rigidly connected to the lower end of the smoothportions 166 for rotating the operating screws and preventing theirupward movement. The bevel gears 169 are engaged and driven by bevelgears 170 rigidly mounted upon a transverse shaft 171, which is given astep by step turning movement by means to be described.

The numeral 172 designates outer or end pinions, carrying collars 173,journaled through openings in the upper portion of the frame 163. Theupper portions of the operating screws 167 are smooth and are providedwith longitudinal grooves 174, re-

- ceiving splines carried by the pinions 172.

It is thus seen that as the frame 163 is traveling upwardly ordownwardly, the pinions 172 move upwardly and downwardly with it and areat the same time rotatedby the operating screws 165.

The numeral 176 designates vertically r0- tatable shafts, the oppositeends of which are journaled through the upper and lower portions of thevertical movable frame 163. At their upper ends, the shafts 176 extendupwardly beyond the frame 163, and have pinions 177 rigidly connectedtherewith, which engage each other, and the outermost pinions 177 alsoengage the pinions 172 to be driven thereby. It is thus seen that theshafts 176- are all being rotated during the reciprocatory movement ofthe carriage 163. Each shaft has spirally arranged openings 178, whichare preferably arranged at 90 apart. Within these openings are arrangedpins 179, which may be held therein by any suitable means. It should bedistinctly understood that these pins may be connected with therotatable shafts 176-by any other suitable means. By this arrangementany suitable number of pins may be secured to each shaft, and these pinsmay be angularly arranged with relation to the shaft, in accordance withthe work to be done. By referring to Fig. 3, it will be seen that uponthe rotation of the corresponding shaft 17 6, the frame 163 being alsoraised a proper distance, when the pin 179 engages the trip cam 162, thelever 160 will have its lower end swung rearwardly, whereby stop 158 ismoved out of the path of travel of the head 157 thus allowing the rod151 to descend, whereby the punch element is rendered active, as abovestated. However, if there is no pin in the opening, or connected withthe shaft at that point, the stop 158 will be arranged beneath and inthe oath of travel of the head 157,

awayfrom the periphery of the same. This connection may be effected byany suitable Ineans, one example of which being the pro- Pivotallyconnected with the disk 180 is a depending pitman 182, the lower end ofwhich is adjustably pivotally connected with a vertically swinginglever183. The lever .183 is pivotally or loosely mounted upon the shaft171, at a, point between the ends of the lever. A double acting pawl184: is pivotally connected with the forward end of the lever 183, andis adapted to beswung in opposite directions for engagement with apinion 185, rigidly secured to the end of the shaft 171; A spring 186isprovided to retain the pawl in either of its operative positions. Itis thus seen that-upon each revolution of the throw shaft 119, thepitman 182 and associated elements will turn the shaft 171 sufficiently,whereby the same through the medium of the operatingscrews 165 andassociated elements, will advance the frame 163 upwardly, a distancecorresponding to the pitch ordistance between the pins carried by theshafts 176.

The operation of the apparatus is as follows: The sheet metal 61 issecured to the carriage 51, which may be assumed to be at the left inthe starting position; Thepawl 184 is in the lower operative osition.The shaft 126 is rotated in the direction of the arrow and the shaft 89is rotated in the direction of the arrow. Assuming that the punchingmechanism is at rest, with lockbolt 132 within the openingl31" betweenthe ously withdraw lock-bolt 132 cut of' the opening 131 between clutchelements 127 and 128, whereby the clutch elements enage, the. throwshaft 119 now rotating.

he slide ,120 descends, and the punch elements 144. will be active orinactive, depending upon whether there are pins 17 9 carried by theshafts 176, to engage the trip arm 162. The active punching elements nowgunch the openings in the sheet metal 61.

y'time the slide 120 reaches the: end of its downstroke, cam 118 engagescai-n face 117 of the lever 115 wherebybell-crank lever 86' andassociated elements are reset. The brake lever 101 whichhas been{previously moved'to the stop position is also returned to the upperreleased position. By the time the slide 120 moves upwardly one-half ofits up stroke, the lock-bolt 132 enters the opening between the elements127 and 128, whereby it automatically disengages these elements by thetime the slide 120 reaches the uppermost position. The slide stopped atits elevated position. The operation is repeated indefinitely, thecarria e being advanced a step, stopped, the punc ing mechanism renderedactive, and after performing its function returned to its upper positionand stopped, and the carriage again advanced a step. During the movementof the carriage to the right, the frame 163 moves upwardly, whereby thelower pins 179 successively engage with the trip arms 162. By the timethe lowermost pins 179 are reached by the trip arms 162, the plate hasbeen completely punched, the carriage 159 now occupying the extremeposition to the right with the frame 163 occupying its extreme upperposition. The operation of the machine is now reversed; that is thecarriage is fed to the left, which may be readily accomplishedbyreversing the direction of the rotation of the motor 95, the frame 163being caused to descend by swinging the pawl 184 to the upper operativeposition. The only other change necessary to be made is to swing up theleft presser-bar and swing down the right resser-bar, whereby the pins67 can operate substantially as hereinbefore described. In this manner,the carriage is returned to the left and the frame 163 lowered, thepushing operation occurring, as hereinabove described.

- It is to be understood that the form of my invention herewith shownand described is to be taken as a preferred example of the same, andthat various changes in the shape,

size, and arrangement of parts may be re-' sorted to without departingfrom the spirit of the invention or the scope of the subjoined claims.

Having thus described my invention, I claim 1. In a machine of thecharacter described, a movable carriage, means adapted when active toeffect the travel of the carriage, means adapted to render the firstnamed means inactive, a pin connected. with the carriage and movablewith relation thereto and adapted to be brought by the raiiy spaced pinsconnected with the caris thus.

1,1eaa1o 1 riage to travel therewith and adapted to move the lever, andmeans to hold and trip the pins.

3. In a machine of the character described, a movable carriage,meansadapted when active to effect the travel of the carriage, means torender the first named means inactive including a pivoted lever adaptedto swing automatically in one direction and provided with a lateralextension, an apertured plate connected with the carriage and extendinglongitudinally thereof, a plurality of spaced pins movably mountedwithin the apertures and adapted to engage with the extension of thepivoted lever, and a presserbar arranged above the apertured plate andadapted to engage with the pins to hold and trip them. -v

4. In a machine of the character described, a movable carriage, meansadapted when active to effect the travel of the carriage, gravityoperated means adapted when released to render the first named meansinactive, releasable lock means normally serving to prevent the movementof the 'gravity operated means in one direction, a plurality of pivotedlevers adapted to automatically swing in one direction and provided withmeansto operate the lock means to release the same, an apertured plateconnected with and extending longitudinally of the carriage, a pluralityof pins movably mounted within the apertures of the plate and adapted tomove the pivoted levers, and a presserbar arranged upon one side of theapertured plate to engage with the pins.

5. In a machine of the character described, a movable carriage,-meansadapted when active to effect the travel of the carriage in eitherdirection, automatically operating means adapted when released to renderthe first named means inactive, re-

' v the plates and adapted to move the pivoted levers, and a pluralityof presser-bars arranged upon cne side of the apertured plate andadapted to be alternately moved into proximitv thereto for engagementwith the pins, depending upon the direction of travel of the carriage.

6. In a machine of the character described, a movable carriage, meansadapted when active to effect the travel of the carriage, a grav-itvoperated device for render-.

' number of lifting pawls connected with the pivoted levers and adaptedto elevate the holding pawl to release the same, an aperturedplate'connected with the carriage and extending longitudinally thereof,a plurality of pins movably mounted within the apertu'res inthe plateand adapted to move the pivoted levers, and a presser-bar arranged abovethe plate in proximity thereto for engagement with the movable pins.

7. In amachine of the character described, a longitudinally-movablecarriage, an apparatus to effect a step by step movement of the carriageincludingamovable element, a plurality of pins connected with thecarriage to travel therewith and movable with. relation thereto, andmeans to temporarily hold each pin against movement in one directionwhen the same moves to a position in proximity'to the movable element,substantially as described. 8. In amachine of the character described, asupporting structure, a movable carriage, means for efiecting a step bystep movement of the carriage and adapted to be automa'tically renderedinactive when the carria'ge has moved a predetermined distance, punchingmechanism arranged above the I carriage, and means automaticallyoperated upon the movement of the punching mechanism to a certainposition to render the first named means active.

9. In amachine of the character described, a supporting structure, amovable carriage, means adapted when active to effect the travel of thecarriage, an automatically movable device adapted when released torender the same inactive, means actuated by the movement of the carriageto release the automatically movable device, and means to reset theautomaticallv movable device.

10. In a machine of the character described, a supporting structure, amovable carriage, means adapted when active to effeet the travel of thecarriage, an automatically movable device adapted when released torender the means inactive, means actuated by the movement of thecarriage to release the punching mechanism arranged near the carriage,and means automatically operated upon the movement of the punchingmechanism to a certain position to reset the automatically movabledevice.

11. In a machine of the character described, a movable slide, a punchingelement connected with the slide, a movable gag to render the punchingelement active and inactive, apparatus to move the gag and automaticallvmovable device,-

adapted to move with the slide, and a movable element adapted when inone position to hold the apparatus against movement with the slide; I

vl2. In a machine of the character described, a movable slide, apunching element connected. therewith, a movable gag to render thepunching element active and inactive, apparatus connectedwith themovable gag to move the same and adapted to move with the slide, amovable stop to hold and release the apparatus, and means to move thestop.

13. In a machine of the character described, a slide, a punching elementconnected with the slide, a movable gag to render the punching elementactive and inactive, a pivoted lever secured to the slide to move thegag, a reciprocatory rod arranged near the slide and engaging therewithto move with the same, a link connecting the rod andl pivoted lever, astop movable into and out of engagement with the rod, and means to movethe stop.

14. In a machine of the character described, punching mechanismincluding a plurality of punching elements, a corresponding number ofmovable gags to render the punching elements active and inactive,mechanisms for moving the gags, and a plurality of pin carryingrotatable elements arranged in proximity to the mechanisms to operatethe same. a

15. In a machine of the character described, punching mechanismincluding, a plurality of punching elements, a corresponding number ofmovable gags to render the punching elements active and inactive,mechanisms for moving the gags, a plurality of rotatable elements havingpins longitudinally spaced thereon to actuate the mechanisms, and meansto simultaneously rotate the elements and move them longitudinally.

16. In a machine of thecharacter described, punching mechanism includinga plurality of punching elements, a corresponding number of movable gagsto render the punching elements active and inactive, mechanisms formoving the gags, a reciprocatory frame, rotatable elements mountedwithin the frame and having pins connected therewith and longitudinallyspaced with relation thereto for actuating the mechanisms, means toreciprocate the frame, and means to rotate'the element's.

17. In a machine of the character described, punching mechanismincluding a plurality. of punching elements, a corresponding number ofmovable gags to render the punching elements active and inactive, areciprocatory frame, an operating element having screw-threads to engagewith the reciprocatory frame and move the same in 'ment with the rod, alever either direction, means to rotate the operatng element, a gearsplined upon the'operating element and movable with the reciprocatoryframe, a plurality of rotatable pin carrying shafts carried by the frameto operate the gags, and a train of gears connected with the rotatableshafts and driven by the first named gear.

18. In a machine of the character described, punching mechanismincluding a plurality of punching elements, a corresponding number ofmovable gags to render the punching elements active and inactive,mechanisms to move the gags, a frame, an operating element havingscrew-threads to engage with the frame to move the same in eitherdirection, adjustable means to rotate the operating element in eitherdirection, a gear splined upon the operating element and movable withthe frame, a plurality of shafts carried by the frame and provided Withspirally arranged longitudinally spaced pins to operate the mechanisms,and a train.

and engaging the first named beveled gears, a pinion connected with thehorizontal driving shaft, a swinging lever arranged near the pinion, areversible double acting pawl pivoted to the lever and adapted to engagewith the pinion to rotate the same in opposite directions, punchingmechanism including a plurality of punching elements, a correspondingnumber of gags to render the punching elements active and inactive, andgag-controlled mechanism mounted within the frame.

20. In a machine of the character described, a punching element, meansto effect the longitudinal movement of the punching element, a movablegag to render the punchmg element active and inactive means including arod provided with a lateral extension to engage with a portion of saidmeans, a guide for the rod, a stop mounted upon the guide and. movableinto and out of engage pivoted upon the gulde and connected with thestop and provided with a lateral extension and a rotatable elementcarrying pins adapted to engage with the lateral extension of thepivoted lever.

21. In a machine of the character described, a supporting structure, arotatable throw shaft j ournaled through the same,

meaaro a slide engaging the supporting structure, driving connectingmeans between the slide and throw shaft, punching elements carried bythe slide, a corresponding number of gags to render the punchingelements active and inactive, gag control mechanism driven from thethrow shaft, clutch mechanism to control the rotation of the throwshaft, a movable carriage arranged below the punching elements,apparatus to advance the carriage and automatically actuated upon themovement of the carriage for a predetermined distance to stop thecarriage, a piv oted lever provided with means to operate the clutchmechanism, a second lever connected with the pivoted lever to turn therewith, a rod connecting the first named lever with a portion of theapparatus, a rod 'connecting the second named lever with another portionof the apparatus, a pivoted resetting lever connected with the secondnamed rod, and a cam mounted upon the throw shaft to operate theresetting lever.

22. In a machine of the character described, a movable carriage, meansadapted when active to eflect the travel of the carriage, means torender the first named means inactive including a movable elementarranged near the carriage, and a plurality of spaced pins connectedwith the carriage to travel therewith and adapted to be brought intoengagement with the element to move the same.

23. In a machineof the character described, a movable carriage, means toefi'ect a step by step movement of the carriage, and means forcontrolling the operation of the first named means embodying a pluralityof spaced pins connected with the carriage to travel therewith.

24. In a machine of the character described, a movable carriage, aplurality of longitudinally spaced pins connected with the carriage,normally active means to ad Vance the carriage, and means intermittentlyengaged and operated by the pins to render the first named meansinactive.

25. In a machine of the character described, a movable carriage, aplurality of longitudinally spaced pins connected with the carriage totravel therewith, normally active means to advance thecarriage, meansintermittently engaged and operated by the pins to render the firstnamed means inactive, and automatic means to render the first namedmeans active after each time that the same has been rendered inactive.

26. In a machine of the character described, a movable carriage,normally active means to advance the carriage, means em bodying areleasable latch to render the first named means inactive, and aplurality of devices operated by the movement of the carriage to actuatethe latch to release it.

27. In a machine of the character described, a movable carriage, drivingmeans therefor, stopping means controlling the operation of the drivingmeans, and a plurality of spaced elements connected with the carriage tomove therewith and adapted to be successively brought into engagementwith the stopping means to intermittently operate the same whereby astep by step movement of the carriage is obtained.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN WRIGHT.

Witnesses:

LINDSAY MGGILL, BENJAMIN FISCHER.

